Nasal polyps (Small, sac-like growths consisting of inflamed nasal mucosa) are seen with asthma, hay fever, chronic sinus infections, and cystic fibrosis.
Review Date 8/31/2021
Updated by: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.